Home / 5,405.70-7,458.15-3,166.05

Finding the Fourth Proportional to 5,405.70, 7,458.15 and 3,166.05

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Solution

The fourth proportional to 5,405.70, 7,458.15 and 3,166.05 is: 4,368.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,405.70 : 7,458.15 = 3,166.05 : x
  2. Step 2: Convert to fraction form
    5,405.70/7,458.15 = 3,166.05/x
  3. Step 3: Cross multiply
    5,405.70x = 7,458.15 × 3,166.05
  4. Step 4: Simplify right side
    5,405.70x = 23,612,875.81
  5. Step 5: Solve for x
    x = 23,612,875.81/5,405.70
  6. Step 6: Final answer
    x = 4,368.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.